Smallest victories For Under-19s World Cup - Namibia Under-19s
By runs
Winner | Margin | Balls Rem | Target | Overs | Opposition | Ground | Match Date | Scorecard |
| 15 runs | 0 | 226 | 44.2 | v NEP Under-19 | Fatullah | 11 Feb 2016 | Youth ODI # 1088 | |
| 23 runs | 0 | 264 | 47.3 | v Canada U19 | ICCA 2 Dubai | 24 Feb 2014 | Youth ODI # 965 | |
| 141 runs | 0 | 227 | 34.4 | v Canada U19 | Auckland | 1 Feb 2002 | Youth ODI # 345 |
By wickets
Winner | Margin | Balls Rem | Target | Overs | Opposition | Ground | Match Date | Scorecard |
| 2 wickets | 62 | 137 | 39.4 | v S Africa U19 | Cox's Bazar | 31 Jan 2016 | Youth ODI # 1062 | |
| 4 wickets | 33 | 142 | 44.3 | v SL Under-19 | Lincoln | 22 Jan 2002 | Youth ODI # 312 | |
| 4 wickets | 39 | 235 | 43.3 | v Scot U19 | Auckland | 28 Jan 2002 | Youth ODI # 331 | |
| 7 wickets | 81 | 157 | 36.3 | v Scot U19 | Colombo (CCC) | 9 Feb 2006 | Youth ODI # 501 | |
| 8 wickets | 138 | 177 | 27.0 | v Kenya U19 | Lincoln | 25 Jan 2018 | Youth ODI # 1189 | |
| 9 wickets | 113 | 145 | 31.1 | v Malaysia U19 | Johor | 24 Feb 2008 | Youth ODI # 619 | |
| 9 wickets | 144 | 160 | 26.0 | v Scot U19 | Cox's Bazar | 29 Jan 2016 | Youth ODI # 1054 |
By balls remaining in the second innings
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 4 wickets | 33 | 142 | 44.3 | 50.0 | v SL Under-19 | Lincoln | 22 Jan 2002 | Youth ODI # 312 | |
| 4 wickets | 39 | 235 | 43.3 | 50.0 | v Scot U19 | Auckland | 28 Jan 2002 | Youth ODI # 331 | |
| 2 wickets | 62 | 137 | 39.4 | 50.0 | v S Africa U19 | Cox's Bazar | 31 Jan 2016 | Youth ODI # 1062 | |
| 7 wickets | 81 | 157 | 36.3 | 50.0 | v Scot U19 | Colombo (CCC) | 9 Feb 2006 | Youth ODI # 501 | |
| 9 wickets | 113 | 145 | 31.1 | 50.0 | v Malaysia U19 | Johor | 24 Feb 2008 | Youth ODI # 619 | |
| 8 wickets | 138 | 177 | 27.0 | 50.0 | v Kenya U19 | Lincoln | 25 Jan 2018 | Youth ODI # 1189 | |
| 9 wickets | 144 | 160 | 26.0 | 50.0 | v Scot U19 | Cox's Bazar | 29 Jan 2016 | Youth ODI # 1054 |
Tied matches
Team 1 | Team 2 | Ground | Match Date | Scorecard |
| Ireland U19 | Namibia U19s | Moors Sports Club Ground, Colombo | 15 Jan 2000 | Youth ODI # 245 |
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